MARATHERM / AIR-SOURCE HEAT PUMP

N5H8T36*K*AAA*

2-STAGE 18 SEER HP · source records, page 7

145 published source records · source checked Sep 21, 2026

SEER2 range15.2–17BTU/Wh
HSPF2 range7.8–8.5BTU/Wh
Cooling capacity33,800–38,000BTU/h

Each efficiency range summarizes published EPA records for N5H8T36*K*AAA*. The highest SEER2 and HSPF2 may belong to different combinations. Open a source record below to see its ratings and the scope of its component information.

Model patterns and component strings are preserved exactly. How to read model patterns and combinations →

Heating performance & equipment details

Ranges include the 145 published source records for this model. Values in different rows may describe different configurations. Open an individual record to compare values from the same test configuration.

Reported fieldValue / rangeRecords supplying it
SEER2 · BTU/Wh15.2–17145 / 145
EER2 · BTU/Wh11.7–13145 / 145
HSPF2 · BTU/Wh7.8–8.5145 / 145
Cooling capacity · BTU/h33,800–38,000145 / 145
Heating capacity at 47°F / 8.3°C · BTU/h37,200–39,000145 / 145
Heating capacity at 17°F / −8.3°C · BTU/h23,000–24,200145 / 145
Heating capacity at 5°F / −15°C · BTU/h17,500–19,600145 / 145
COP at 5°F / −15°C1.78–2.48145 / 145
Equipment / loop typeHP - Split System145 / 145
Refrigerant / source-reported GWPR-454B (GWP:470 | Lower GWP)145 / 145
Compressor stagingTwo-stage145 / 145
Connected capabilityNo145 / 145

47°F = 8.3°C; 17°F = −8.3°C; 5°F = −15°C. COP is dimensionless. These are reported rating points, not a prediction of a particular home’s heat demand or operating limit.

Matched systems

Each row is one source record. The component column distinguishes listed combinations from outdoor-model ratings without an indoor configuration.

Indoor unit / required furnaceSEER2BTU/WhHSPF2BTU/WhHeating capacity at 5°F / −15°CBTU/hCOP at 5°F / −15°CRecord & comparison
EA*5X48M21A*+ furnace: *80CSU0401712A*AHRI reference: 21563869715.208.10193002.22EPA 3956078
EA*5X48M21A*+ furnace: *80CSU0802120A*AHRI reference: 21563874015.208.10192002.24EPA 3956093
EA*5X48M21A*+ furnace: *80CTL0701716B*AHRI reference: 21563897415.208.10193002.24EPA 3956168
EA*5X48M21A*+ furnace: *80CTL0702120B*AHRI reference: 21563899715.208.10192002.26EPA 3956186
EA*5X48M21A*+ furnace: *80CTL0901716B*AHRI reference: 21563901715.208.10191002.26EPA 3956198
EA*5X48M21A*+ furnace: *95CSU0802120B*AHRI reference: 21563919115.208.10192002.26EPA 3956300
EA*5X48M21A*+ furnace: *95MSU0802120A*AHRI reference: 21563949015.208.10192002.24EPA 3956458
ESH5X36M12A*+ furnace: *80MSU0802120A*AHRI reference: 21564002615.207.80188002.26EPA 3956513
ESH5X42M12A*+ furnace: *80CSU0802120A*AHRI reference: 21564079815.208.10192002.24EPA 3956541
ESH5X48M12A*+ furnace: *80CTL0902120B*AHRI reference: 21564235015.208.10190002.26EPA 3956569
ESH5X48M12A*+ furnace: *80CTL1102120B*AHRI reference: 21564237215.208.10191002.26EPA 3956581
ESH5X48M12A*+ furnace: *80CTL1352422B*AHRI reference: 21564239415.208.10190002.26EPA 3956594
ESH5X48M12A*+ furnace: *95CSU1002122B*AHRI reference: 21564250215.208.10190002.26EPA 3956636
ESH5X48M12A*+ furnace: *97CMN1002122B*AHRI reference: 21564255815.208.10191002.26EPA 3956643
ESH5X48M12A*+ furnace: *95MSU0802120A*AHRI reference: 21564271115.207.80192002.26EPA 3956678
ESH5X48M12A*+ furnace: *95MSU1002122A*AHRI reference: 21564276215.208.10190002.26EPA 3956692
ESH5X42M12A*+ furnace: *80MSU0601716A*AHRI reference: 21564099915.207.80190002.26EPA 3956716
ESH5X48M12A*+ furnace: *96CTN1002122B*AHRI reference: 21564282415.208.10191002.26EPA 3956781
ESH5X42M12A*+ furnace: *95CSU1002122B*AHRI reference: 21564143015.207.80190002.26EPA 3956879
ESH5X42M12A*+ furnace: OLV154F20AAHRI reference: 21564195015.208.10191002.26EPA 3956906

Sources and documentation

The table uses public EPA ENERGY STAR data. AHRI references are reported by EPA and have not been independently checked with AHRI. Source records do not establish availability, installation suitability or rebate eligibility.

No manufacturer manual has been matched to this model.

Collection method, revision history and known limitations →